You can express the edge lengths in terms of "cubes" or you divide the total volume by the volume of a cube. It works either way.
Edge lengths are
.. 80 cubes by 8 cutes by 13 cubes
so total volume is
.. (80 * 8 * 13) = 8320 cubes
In cubic inches, the volume is
.. (20 in)*(2 in)*(3 1/4 in) = 130 in^3.
The volume of a 1/4-in cube is (1/4 in)^3 = 1/64 in^3.
Then the number of cubes that will fit in the prism is
.. (130 in^3)/(1/64 in^3) = 8320 . . . . cubes
8320 cubes are needed to fill the rectangular prism.
This will give you the total surface area, in square units, of your triangular prism. So, the surface area of a triangular prism with a base having sides measuring 6, 5, and 4 centimeters in length, and a height measuring 9 centimeters in length, has a surface area of 154.8 square centimeters.
<span>Cross multiply
26*5x = 849 * 57
130 x = 48393
x = 48393 / 130
x = 372.25</span>
Answer:
Step-by-step explanation:
to find out, just sub in -8 for x and find out if it is true
3x = 16 - 5x
3(-8) = 16 - 5(-8)
-24 = 16 + 40
-24 ≠ 56......no, -8 is not a solution
3x = 16 - 5x
3x + 5x = 16
8x = 16
x = 16/8
x = 2 ............2 is the correct answer
X, x+2, x+4, x+6
<span>5(x+x+2) = -10 + 7(x+2+x+6) </span>
<span>10x+10 = -10 + 14x+56 </span>
<span>-36 = 4x </span>
<span>-9=x </span>
<span>-9,-7,-5,-3 are the four numbers!</span>